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United States Patent | 5,038,600 |
Friedman | August 13, 1991 |
An X-control gage for measuring the X-dimension of hydraulic tube fittings comprises a pin slidably engaged in a body part. In use, a lowermost end of the pin makes contact with the tube stop of the fitting port while the body part makes contact with the inner taper of the fitting along a circle having a specified "B"-diameter. An upper end of the pin extends beyond an upper end of the body part, and measurement of the distance of extension is simply related to the X-dimension of the fitting using a calibrated overall length of the pin and a calibrated dimension of the body part. Methods of calibrating and using the X-control gage are presented, as well as a method of connecting two hydraulic tubes so that there is no loss of hydraulic liquid or pressure at the connection.
Inventors: | Friedman; Peter M. (Marina del Rey, CA) |
Assignee: | Military Standards Corporation (Marina del Rey, CA) |
Appl. No.: | 437999 |
Filed: | November 20, 1989 |
Current U.S. Class: | 33/502; 33/529; 33/544 |
Intern'l Class: | G01B 005/12 |
Field of Search: | 73/1 J 33/544,502,529,542,543.1,544.1,544.2,544.3,544.4,542.1,545,549 137/15 |
1459896 | Jun., 1923 | John | 33/544. |
1796129 | Mar., 1931 | Swanson | 33/544. |
2349879 | May., 1944 | Ogren | 33/544. |
2514794 | Jul., 1950 | Prince | 33/544. |
2662296 | Dec., 1953 | Stedman | 33/544. |
2855686 | Oct., 1958 | Zelnick | 33/544. |
2883755 | Apr., 1959 | Lovenston | 33/502. |
3417475 | Dec., 1968 | Vlasaty | 33/502. |
3566500 | Mar., 1971 | Simon | 137/15. |
4919510 | Apr., 1990 | Hoke et al. | 350/96. |
Foreign Patent Documents | |||
2147176 | Mar., 1973 | DE | 33/544. |
3823684 | May., 1989 | DE | 33/502. |
2397620 | Mar., 1979 | FR | 33/529. |
40109 | Mar., 1984 | JP | 33/529. |
565105 | Jul., 1977 | SU | 73/1. |
1 Page Photocopy rendition of Conventional X-Control Gage Produced by Dec. 1989, Gages Known by Nov. 1989. D.O.D. Form 672-1 of Military Standard MS33514 entitled "Fitting End, Standard Dimensions For Flareless Tube Connection and Gasket Seal", 2 pages, date stamped Sep. 22, 1969. |